#include "stdafx.h"
#include "epi.h"

using namespace std;

int main(int argc, TCHAR* argv[], TCHAR* envp[])
{
	if (argc < 5)
	{
		cout << "Syntax: example06.exe \"url\" idx \"name\" \"value\"" << endl;
		return 1;
	}

	LPCTSTR lpszUrl = argv[1];
	long index = _tstol(argv[2]);
	LPCTSTR lpszName = argv[3];
	LPCTSTR lpszValue = argv[4];

	::CoInitialize(NULL);

	IEvalid * pEvalid = NULL;
    HRESULT hr = CoCreateInstance(CLSID_Evalid, NULL, 
						CLSCTX_INPROC_SERVER, IID_IEvalid, (void**)&pEvalid);
	if (SUCCEEDED(hr))
	{
		pEvalid->InitLink(CComBSTR(lpszUrl));

		long numItems;
		if( SUCCEEDED(pEvalid->get_NumElements(0, NULL, &numItems)))
		{
			if (index < 0 || index >= numItems)
				cout << "index is out of bounds" << endl;
			else
				pEvalid->put_ElementAttribute(0, index, CComBSTR(lpszName), CComBSTR(lpszValue), NULL);
		}

		pEvalid->Release();
	}
	else
	if (hr == E_ACCESSDENIED)
		cout << "Missing a valid EPI license key!" << endl;
	else
		cout << "Unable to load EPI!" << endl;

	::CoUninitialize();

	return 0;
}